It grows on the grassy banks of upland streams as well as in marshy grassland and on wet heathland and although plants are small and easily overlooked, it is fairly conspicuous at this time of year. If you’re in the right habitat, there’s little else you can confuse it with. Look for small, pale blue flowers set against a mass of pale green, flimsy, ivy-shaped leaves, usually among grasses and mosses. It’s a real gem! The plants in the photo were growing along the overhanging banks of the Melincourt Brook in the Neath Valley, out of the reach of hungry sheep, the main grazers in many of its favoured habitats. Excessive grazing by sheep may be one reason for its recent decline. In Glamorgan it has been recorded most commonly in the upland areas of the South Wales Coalfield, particularly in Rhondda Cynon Taff and Bridgend County. It appears to be less common in Swansea and Neath Port Talbot. Given the decline of this species in Britain in general and its importance to the biodiversity of Wales, it would be nice to know more about the current status of this species in our area.